Corkscrew



FIG. 1 is a front perspective view of a corkscrew showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a right side elevational view thereof; the left side elevational view being a mirror image thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a bottom plan view thereof, with the broken lines depicting portions of corkscrew which form no part of the claimed design. 

The design for a corkscrew, as shown and described. 